|
Light-weight bricks/Insulation Bricks |
 |
|
Light-weight bricks
| Al2O3 % |
≥48% |
| Fe2O3 % |
≤2.0 |
| Bulk Density g/cm3 ≤ |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
| Cold Crushing Strength Mpa |
≥3.92 |
≥3.43 |
≥2.94 |
≥2.45 |
≥1.96 |
≥1.47 |
≥0.78 |
Thermal Conductivity
(350±25℃) W/m.k |
≤0.5 |
≤0.45 |
≤0.35 |
≤0.35 |
≤0.30 |
≤0.25 |
≤0.20 |
| The Temperature of linear change within 2% on reheating |
1400℃ |
1400℃ |
1400℃ |
1350℃ |
1350℃ |
1250℃ |
1250℃ |
Mullite Insulation Bricks
| Brand |
Density
g/cm3 |
Pressure Strength
MPa |
Tensile Strength
MPa |
Shrinkage after Heavy
Firing % |
Thermal shock
resistance |
Modulus of Thermal
Expansion w/m.k |
Al2O3
% |
Fe2O3
% |
| GD-23 |
0.6 |
1.6 |
1 |
1250℃×24h
-0.5 |
20 |
400℃ 0.15
1000℃ 0.2 |
40 |
1.0 |
| GD-26 |
0.8 |
2.8 |
1.4 |
1450℃×24h
-0.5 |
20 |
600℃ 0.25
800℃ 0.27 |
55 |
1.0 |
| GD-28 |
0.85 |
3.2 |
1.7 |
1510℃×24h
-0.5 |
20 |
600℃ 0.314
1000℃ 0.347 |
66 |
0.9 |
| GD-30 |
1.0 |
3.5 |
2.1 |
1620℃×24h
-0.6 |
25 |
1000℃ 0.45 |
72 |
0.7 |
| GD-32 |
1.2 |
4.5 |
2.5 |
1730℃×24h
-0.6 |
25 |
1000℃ 0.56 |
77 |
0.6 |
|
Refractory Products